A pragmatic comparison of locator ID split solutions for routing system scalability

There are a multitude of different locator/ID split proposals aiming to tackle the problem of routing system scalability. However, with no large scale implementations, there is a lack of understanding of the strengths and weaknesses of the different solutions. Here, we divide current proposals into two broad categories and consider the likely generic behaviour of each category compared to a set of requirements. These include the need to motivate specific system providers to upgrade the system in order to solve the wider problem of system scalability. From this, we see each class has different strengths and weaknesses.